SLUAAY5 December   2024 UCC21551-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Automotive PTC Heater Module Overview
    1. 2.1 Automotive Heating Architectures
      1. 2.1.1 Positive Temperature Coefficient Heaters
      2. 2.1.2 Heat Pumps
    2. 2.2 Automotive Heating Architectures
    3. 2.3 PTC Heater Topologies
  6. 3Design of Automotive PTC Heater Controller
    1. 3.1  Block Diagrams
    2. 3.2  Designing the Power Supplies
    3. 3.3  Picking Low-Dropout Regulators
    4. 3.4  Designing of the Communication Interface
    5. 3.5  Implementation of the Digital Isolator
    6. 3.6  Implementation of the Microcontroller Unit
    7. 3.7  Designing of the Switch Driver Stage
    8. 3.8  Selection of the Power Switches
    9. 3.9  Considerations of the PTC Load
    10. 3.10 Designing the Load Current Monitoring
    11. 3.11 Selection of the Temperature Sensing
  7. 4Summary

2 Automotive PTC Heater Module Overview

This section describes the high-level design topologies for full EV heating and cooling systems, as well as topologies for PTC heater control modules at a subsystem level.